<!DOCTYPE HTML>
<title>Testcase to exercise nsSpanningCellSorter</title>
<style type="text/css">

table, td {
	border-spacing: 0;
	padding: 0; margin: 0; border: none;
	empty-cells: show;
}

td { height: 20px; }

</style>

<table>
  <tr>
    <td style="width: 150px; background-color: yellow"></td>
    <td style="width: 450px; background-color: aqua"></td>
  </tr>
  <tr>
    <td style="background-color: blue"></td>
    <td style="background-color: blue"></td>
  </tr>
</table>
